#include <bits/stdc++.h>
using namespace std;

int main()
{
	freopen("duel.in","r",stdin);
	freopen("duel.out","w",stdout);
	int n,i;
	int k;
	int a[100010]={0};
	
	cin>>n;
	for(i=1;i<=n;i++)
	{
		cin>>k;
		a[k]++;
	}
	
	int ans=-1;
	for(i=1;i<=100001;i++)
		if(a[i]!=0)
			ans=max(ans,a[i]);
	cout<<ans<<endl;
	return 0;
}

